Located in Sonoma County, California, Petaluma is known for its grain milling and chicken processing industries. It is a safe and beautiful place to live, especially for young professionals. The city is highly regarded for its strong educational opportunities and friendly communities. There are plenty of job opportunities and stunning homes for people who want to settle in the area.

The list below contains seven of the best commercial contractors in Petaluma, California. They were chosen for their years in the business, their awards, and their portfolios.

Midstate Construction

1180 Holm Road, Petaluma, CA 94954

Midstate Construction is a Petaluma-based general contractor that has been in the business for 86 years. The firm is committed to integrity, quality, commitment, safety, and building lasting relationships. The firm provides a wide range of services, including commercial and tenant improvements to Sonoma County and its surrounding areas. The firm also specializes in multi-family, office, retail, industrial, hospitality, parking structures, public works, and historical renovation. Midstate Construction has built a reputation for trust and accountability with its clients and employees, firmly believing that relationships form the foundation of success.

The firm operates under the supervision of President Roger Nelson. He completed his bachelor’s degree in Economics at Claremont McKenna College and a master’s degree in Civil Engineering – Construction Management and a master’s degree in Industrial Engineering – Engineering-Economic Systems at Stanford University.

Thompson Builders

5400 Hanna Ranch Road, Novato, CA 94948

Operating out of its office in Novato, California, Thompson Builders is a general contracting firm extending its services to Sonoma County and the surrounding area. It provides general contracting, pre-construction, value engineering, design-build, and lease-leaseback services. Since its founding in 1989, it has built a reputation for completing complex projects on time and on schedule while ensuring quality craftsmanship. Over the years, it has delivered over 200 projects worth approximately $200 billion in contract value.

The team has a diverse background in developing large-scale construction projects. This extensive experience gives the firm the confidence to tackle any project type, regardless of complexity and size. Thompson Builders is run by Paul Thompson, the firm’s president. He is a graduate of California State University. The firm has won several awards over the past three decades, including the International Partnering Institute’s 2010 and 2012 Project of the Year.

Köch Construction

1550 Airport Boulevard, Suite 104, Santa Rosa, CA 95403

Köch Construction is a leading general contractor based in Sonoma County. It has been in the business since 1935 and offers a wide range of services, including commercial and tenant improvements throughout Sonoma County and its surrounding area. The firm has been providing a diverse range of projects for more than eight decades. Köch Construction includes experienced interior designers and architects committed to creating lasting and valuable projects. The firm is also an expert builder of tilt-up concrete buildings, wood frames, medical office buildings, wineries, custom homes, and more.

The firm operates under the leadership of President David Koch. He is a member of the National Federation of Independent Business, Santa Rosa, Windsor Chamber of Commerce, and the Associated Builders and Contractors.

Landmark Builders

42 Digital Drive, Suite 11, Novato, CA 94949

Established in 1985, Landmark Builders is a full-service construction company serving Marin, San Francisco, Napa, and Sonoma. The firm focuses on providing commercial and residential projects that deliver exceptional value. The firm is admired for its excellent craftsmanship and unparalleled customer service. For over three decades, it has been offering its clients a hands-on experience to intelligently plan each project and efficiently resolve every issue that arises. The firm finishes its projects on time and within budget.

Landmark Builders has been featured by Architect Focus, Marin Home Magazine, and Dwell Magazine. The firm is led by President and General Building Contractor Jaimie R. Stewart. He is thoroughly involved in short and long-term planning, meeting new clients, providing cost and scheduling time estimates, negotiating contract agreements, and more.

GMH Builders Inc

901 Broadway, Sonoma, CA 95476

GMH Builders is a Sonoma-based general contracting firm operating in Sonoma County. It has been serving the area since 2016 and provides planning, preconstruction, general contracting, value engineering, sustainable construction, and more. GMH Builders is a team of highly experienced and driven professionals with years of exceptional service. The firm has positioned itself by delivering a detailed and responsive approach to every market it serves, including health care, education, and hospitality.

Furthermore, GMH Builders is led by Seth Maze, Josh Grigg, and Dan Hannan. Seth is a LEED accredited professional and the firm’s Co-Founder and CEO. The principals have more than fifty years of combined construction experience.

The firm is accredited by the U.S Green Building Council and the Occupational Safety and Health Administration. It has also been featured by several publications, including North Bay Business Journal.

McDevitt Construction Partners, Inc.

3820 Cypress Drive, Suite 6, Petaluma, CA 94954

McDevitt Construction Partners, Inc. is a commercial general contractor that has been providing construction services since 1976. It extends its services to business owners and professional developers throughout Sonoma County and the surrounding area. The firm takes pride in delivering outstanding projects and exemplary customer service by providing clients individual attention throughout the construction process. The firm collaborates with clients to identify their primary goals and agree on objectives, delivering projects on time and within budget.

The firm’s 45 years of experience have enabled it to gain valuable knowledge and insights that are helpful to current and future clients. That experience allows it to give practical suggestions based on first-hand experience. The firm works closely with the design team to ensure a speedy completion time and successful building functionality. The firm was led by William McDevitt before ownership was transferred to Peter Rosell. Both McDevitt and Rosell have years of experience in the construction industry that they use to guide the firm.

Holly & Associates

73 Saint James Drive, Santa Rosa, CA 95403

Operating out of its office in Santa Rosa, Holly & Associates is a licensed general contractor in business since 1984. The firm offers various services, including custom homes, multifamily, winery, and commercial; it services Sonoma County, Santa Rosa, and the North Bay. Holly & Associates has specialized in residential and specialty commercial services, collaborating with clients to develop the right solutions for their respective budgets. What sets it apart from other general contractors is its passion for excellence and timeliness. 

Holly & Associates has built a reputation for reliability and accuracy. It is led by Janver Holly and Justin Hunter, who ensure that every project meets the highest quality standards. Finally, the firm is certified by the Santa Rosa Metrochamber, Healdsburg Chamber of Commerce & Visitors Bureau.